OGLE-2017-BLG-1434L b
Astrophysical Synthesis & Habitability Characterization
OGLE-2017-BLG-1434L b is a confirmed super-earth exoplanet orbiting the star OGLE-2017-BLG-1434L, located approximately 2804.9 light-years (860 parsecs) from the Solar System. First announced in 2018 by OGLE using the Microlensing detection technique (detected via relativistic gravitational lensing of a background source star), this world measures 1.94 Earth radii and has a measured mass of 4.43 Earth masses. Combining its mass and radius yields a mean bulk density of 3.35 g/cm³ (an intermediate density indicative of a deep water-ice mantle or dense volatile envelope), a surface gravity of 1.18 g⊕ (11.57 m/s²), and an escape velocity of 16.9 km/s.
ℹ️ Thermal & Atmospheric Regime: Current photometric and spectroscopic constraints for OGLE-2017-BLG-1434L b place it outside the conservative habitable zone definition pending further atmospheric characterization.
The host star OGLE-2017-BLG-1434L is classified as a stellar host with a mass of 0.234 M☉.
Methodology: Computed using the Schulze-Makuch et al. (2011) weighted metric comparing physical interior (radius, estimated density) and surface thermal regime (escape velocity, equilibrium temperature).
Discovery Facility: OGLE · Catalogue Source: NASA Exoplanet Archive (IPAC / Caltech).
☀️ Host Star Telemetry
| Host Star Name | OGLE-2017-BLG-1434L |
| Spectral Type | Unclassified |
| Effective Temp (Teff) | — |
| Stellar Radius | — |
| Stellar Mass | 0.2340 M☉ |
| Metallicity [Fe/H] | — |
| Stellar Age | — |
| Apparent Magnitude | — |
| System Architecture | 1 Star, 1 Planet |
🪐 Orbital & Physical Dynamics
| Semi-Major Axis (a) | 1.180000 AU |
| Orbital Period | — |
| Orbital Eccentricity (e) | Circular (0.00) |
| Orbital Inclination (i) | — |
| Mean Bulk Density | 3.35 g/cm³ (16.9 km/s vesc) |
| Insolation Flux | — |
| Habitable Zone Status | Exterior / Non-HZ |
| Celestial Distance | 2804.900 LY (860.000 pc) |